Macintosh,
Charles MacDiarmid,
Alan G
Marcus,
Rudolph A. Martin,
Archer John Porter McBain,
James William Mendeleyev,
Dmitri Ivanovich Merrifield,
Robert Bruce Meyer,
Viktor Michel,
Hartmut Miller,
Stanley Miller,
William Mitchell,
Peter Mitscherlich,
Eilhard Moissan,
Henri Molina,
Mario J. Mond,
Ludwig Mulliken,
Robert Sanderson Mullis,
Kary B. Monge,
Gaspard Moore,
Stanford Mills,
William Hobson Meyer,
Julius Lothar